Instruments
Quick Environmental Exposure and Sensitivity Inventory (QEESI).
This questionnaire was created by Claudia Miller and Thomas J. Prihoda
in 1999 with the aim of providing the scientific community with a
useful tool to assess individuals with MCS, which had not been so far
described as an entity. The QEESI is a short version of the Environmental
Exposure and Sensitivity Inventory (EESI). It is an instrument with 5
subscales of 10 items each, with 11 Likert response options in 4 of the
subscales and 4 options in 1 subscale. Its psychometric properties
indicate an internal consistency of between .89 and .97 in the different
subscales, together with a sensitivity of 92% and a specificity of 95% as
a screening tool for the MCS. It is the questionnaire recommended by
the Consensus of 1999 to assess MCS symptoms